package kr.hkit.powerjava.chapter23;

import java.awt.Font;
import java.awt.HeadlessException;

import javax.swing.JFrame;
import javax.swing.JLabel;

public class CountDownTest extends JFrame {
	private JLabel label;

	class MyThread extends Thread {
		public MyThread(){
			this.start();
		}
		@Override
		public void run() {
			for (int i = 10; i > 0; i--) {
				try {
					Thread.sleep(1000);// 1초 쉼
				} catch (InterruptedException e) {
				}
				label.setText(i + "");
			}
		}
	}

	public CountDownTest() throws HeadlessException {
		setTitle("카운트다운");
		setSize(300, 200);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 종료
		label = new JLabel("Start");
		label.setFont(new Font("Serif", Font.BOLD, 100));
		add(label);
		Thread t=new MyThread();
		setVisible(true);
		while(t.isAlive());
		System.exit(0);
	}

	public static void main(String[] args) {
		new CountDownTest();
	}
}
